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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin freebsd linux netbsd openbsd windows
package signal
import (
"os"
"syscall"
)
// In assembly.
func signal_enable(uint32)
func signal_recv() uint32
func loop() {
for {
process(syscall.Signal(signal_recv()))
}
}
func init() {
signal_enable(0) // first call - initialize
go loop()
}
func enableSignal(sig os.Signal) {
switch sig := sig.(type) {
case nil:
signal_enable(^uint32(0))
case syscall.Signal:
signal_enable(uint32(sig))
default:
// Can ignore: this signal (whatever it is) will never come in.
}
}
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